Hand can-top sealer



July 7, 1931. c. M. YOUNG 1,813,220

v HAND CAN TOP SEALER Filed July 22, 1929 2 sheets-snm 1 July 7,1931. C, YOUNG 1,813,220

HAND CAN TOP SEALER Filed July 22, 1929 2 Sheets-Sheet 2 `5o b 9v 5'0 I'z' .7 n.41 9 Q41 61 41 41.

48 474212544 I [4 1 444 fyi? INVENTORl ATTORNEY.

l Patented July 7, 19.31

naires ,STATES CHARLES M. Yonne, on TEN MILE ToWNsI-ir, WH-Arcola eeUit'rY, wasirrieeroii HAND CAN-Tor sEALEie Application ined 'Juiy 2'2, 1929. serial in. ascesa.

My invention relat'esto improifernents in hand can-top Sealers,r the kind used 4in mak-A Y ing4 the sanitary seal of tin 'can to'p to body, and has for an object to provide a hand can 5 sealer of rigid 'construction in which the requiredjresilience is `supplied by the hand and arrn of the operative.

l mother 'object of .provide a hand can sealer having neither eclG centric, spiral nor cam surfaces of operation. Another 'object of my improvement is to provide a hand 'can sealer designedfor vproduction on ordinary machine tools by mechanics of ordinary ability. v y

Another object of my improvement is to provide a hand ca'nsealer which, with slight changes, is adaptable 'for sealingr cans of various diameters and heights and yet beofv coni'fenientvsiz'e yfor domestic hand use.

I attain these and other objects Vof my imprei/ement with thefmeohanism illustrated inl the accompanying two sheets of drawingsinr which'Figure 1 is a topplan view, F ig. 2 is a front elevation of Fig. 1, Fig. 3 isa top plan l View of one of the two similar roller housings segregated, Fig'. 4 Vis a side elevation 'of Fig. 3, Fig. 5 is a top plan viewof the reciprocatory head segregated,Fig. 6 is a bottom 'pla-n view 'of Fig. 5 Fig. '7 is an end elevation 3@ of Fig. 5' and Fig. 8 is aplan view section onliiieSLS of Fig. 2. l

l Similar characters referl to similar parts in the several views. vCertain parts' are'broken to show other 'parts' hidden thereby.

35' vWith more particular referencey to the des# ignated parts: A' frame consisting of vbase bang has table clamps 10,10 fastned'ther'el to and opposite uprights 11,11 preferably in*y teg'ral with the ends thereof. To the upper ends of uprights 11,511 is fastened top bar 12 which is carefully finished fora slide way.

Centrally disposed inbase' 9 is stud 13 parallel' with uprights 11. An elevator slide bar consistingr of thin end 1.11 a-ndthick end 15 connected by incline y16 haslongitudinal slot 17 therethrough, with which it is vengaged with stud 13,- isv disposed fiat side down on base'9. Stud 1S-project`s upwardvfrom near the thin end ofthe elevator slide. y19 is fastened tothe front side of base 9. Elevator my improvement is to handle bar 2O is'fulcrunied on lug 19 bybolt. 21 through registering holesinb'ar and lug and has a hole near its inner end by which it engages stud'19 on the elevator bar. VVhen in its yillustrated fullelin'e position thick part 15 Of the elevator bar is acent stud 13l and 'by Sivinging'handle 2Otoits dotted position at 20", bar 141, v15 isnioved toits dotted position at 14', lvto bring` its thinnerendladja cent stud 13. Elevator bar r14, 15 consists entirely of plane surfaces' easy to'iinish in reqir'ed ex'aetnesswitli' ordinaryniaehih'e tools in *which it is an improvement over theiisual cani or spiral-surfaee elevators common in other hand top sealers.

' 'lti'ng 22 is placed ons'tujd 13 to bear on the j upper surface ofthe elevatorbar 'and has tapered'bottoin edge'to'conform to incline 16 and a flatbottom surface tojbear on the upper surface. of 'thick 15 of the elevator bar. Ring 22 is the lowerl end of a column of variable length'to support canbase disc 31. On top of ring 22 washer 23 'is shown over stud 13. Tosho'rten the length of said colu'rnn a 'thihner'washer than 22 maybe substituted" Atherefor it maybe omitted. Whiley to lengthen said column otherwashers of def sired thickness may beadded to vi'fasher 22'0'11 'i awash'er of standard'thickness for a stand ard can may be substituted therefor. lh` tenal thread'edsleeve 25 is placedv over stud 13 to bear on washer 23 or on ring 2Q inthe` absence yof vsaid washer; Collai`A` 211 hasA a threaded lower vbody to engage sleeve 25 and is placed over stud 13 engag'edin said sleeve f andis retained Iin desired location therein by set screw 26. Theupperendof stud A13-l is prei'fena'bly belo'ii'vA lthe middle of' collar 24:, vCollar 24in sleeve25 provides for a iine adjustinent of the length of said-column and also 'may be u'sedto replace wash-irs some# what thicker than 22`illustrat'ed.

Inthe tip-per end ofcollar 24 a ball race is provided 'for balls 28. Thimble 2Q has ring boss rnear its upper'end 3() which is-eX- 9* tended through a central hele iii base disc 31 which bears o"n said vannularfbos's27. Bo's's- ,Y

A27Y has la ball race in'its bottoni surface for said balls- 28, ,and when mounted thereen I thieme Q9 is extended in the upper end erl collar 24 in which it may revolve when boss 27 revolves on said balls. Thus the column is complete and provides a support for base disc 31 which, with the length of the column shown, moves down to its position at 31 when elevator bar 14, 15 is at 14', 15.

Chuck disc 32 is centrally disposed on the lower surface of spindle flange 33 to which it preferably is fastened with screws. Spindle 34 is mounted for revolution in a central vertical hole through frame top bar 12 and has an enlargement 35 above flange 33 thereon to provide an end bearing against the bottom surface of said top bar 12. lThe upper end of the spindle 34 projects above bar 12 and is extended through driven bevel gear 36 to which it is removably fastened. Bevel gear 36 is engaged with driver gear 37 which is fastened on the inner end of drive shaft 33. Shaft 33 is mounted for revolution in brackets 39 and 40 which are fastened to top bar 12 and project upward therefrom. To the outer end of shaft 38 is fastened hand crank 42 used in turning said shaft by hand.

A reciprocatory head is preferably a channel in shape with web 41 and flanges (L41, @41 is tted to slide on frame top bar 12 to which it is applied from beneath. The head bar is engaged with bar 12 by two cross blocks 43, 43 disposed to bear on the upper surface of bar 12 and retained in place by taper pins 041, 041 through said flanges and blocks.

Through web 41 is central elongated hole 43 through which enlargement 35 of spindle 34 is extended. Also through web 41 are slots @43, @43 near the ends thereof, and in the upper surface of web 41 bordering slots L43 are recesses 543, 543. Projected downward from the ends of the head bar are ribs 541,

j 541, and across the bottom surface of web 41 are several pairs of grooves 44, 44; 45, 45; 46, 46; 47, 47 and 48, 48 the members of each pair of which are preferably disposed at equal distances from the longitudinal center of the head bar.

There are two similar roll housings 49, 49, upper and lower bearing arms 549 and L49 of which have holes 52 in line through which are extended pins 56,56 to mount said rolls. On the top of each of said housings 49 is transverse rib 50 to engage in any one of said pairs of notches, and through the housing body of each is bolt hole 51 parallel with holes 52. As shown in Fig. 2, ione of said roll housings is fastened beneath head web 41 with rib 50 thereon engaged in one of grooves 46, to the left of chuck disc 32, and the other of said housings is similarly engaged with the other groove 46 to the right of said disc. Housings 49 are fastened in place by bolts 53 extended through slots L43 and holes 51 with bolt heads 54 seated in recesses 543 the width of which they fully occupy. Heads 54 are thin and the tops thereof are below the top surface of web 41. Slots a43 and recesses 543 are long enough to permit ribs 50 to be engaged with any one of said notches while said housings are disposed with arms w49, 549 thereof opposite eachother.

On bearing pin 56 in the lefthand housing is mounted first roll for revolution, and on bearing pin 53 in the right-hand housing is mounted second roll 57 for revolution. he grooves of these rolls are disposed in the plane of chuck plate 32 and adjacent the periphery thereof.

Stud 53 projects upward from the top surface of top bar 12 to which it is fastened in the transverse center thereof near and to the left of gear 36. ln the upper edges of head flanges @41, L41 are notches 61, 61 opposite each other and in line with stud 58 when the head bar is in its central position shown in full lines in Figs. 1 and 2. Handle 59 has a hole in the end of its shank to engage stud 58 while said shank is engaged in one of notches 61. Preferably the edges of the shank where they bear on said flanges are arcuate shown at 60, 60. By swinging handle 59 to its dotted position at 59', Fig. 1, head bar 41 is moved toward the right to its dotted position at 41 to bear on stop screw 62, see F ig. 2. And when said handle is swung 'toward the left to its position at 59 head bar 41 is moved toward the left to 41, sce Fig. l, to bear against stop screw 63, see Fig. 2. The position of said 4stop screws provides for the approach of said first and second rolls only to th. t proximity to chuck disc 32 which is needed to finish the work of each roll in sealing the can engaged by the disc.

` T he drawings are to scale for a machine to seal tin cans of standard sizes. In the operation of the machine the process is as follows: Elevator handle 20 is swung to 20 allowing ring 22 to move downward to bear on the thin part 14 of the elevator bar, which was moved by the handle from its full-line position to its dott-ed position at 14', 15, and bottom or base disc 31 moves down to 31. The bottom of an un sealed can of the size for which the illustrated location of the adjustable parts of the machine is correct is placed on disc 31 with the'unsealed top thereof in place on the can body and beneath chuck disc 32. Handle 20 is swung back .to its first position moving thicker part 15 of the elevator beneath ring 22 and carrying disc 31 to its former full-line place. This forces the can lid snugly up against chuck disc 32 which has a nurled periphery, not indicated, causing it to bed into the wall of the recess usual in tin can tops, and secureiy connects the chuck disc with the can top which is held snugly in place on the can body. Handle crank 42 is turned, in direction most convenient, revolving the can top and body on balls 28. While one hand of the operative, the right hand for the illustrated set up of the machine, is turning ion ' place.

crank v42 the left hand grasps handle 59 forces it toward the right causing first roll 55 to press against the downwardly rolled can top edge which overhangs the outwardly rolled upper edge or" the can body. Revolution'of the can continues and pressure on roll 55 isy maintained till the irst step'in forming a joint between can top and body known as the sanitary seal is complete which is indicated by stopping of 'farther right-hand movement ot head bar 41 by the bearing oit right-hand rib 541 on stop screw 62. While continuing the revolution oic the can, handle 59 is now swung toward the left till second roll 57 cont-acts with the partly inished seal and said pressure on handle 59 is continued till farther left-hand movement of head bar 41 is stopped by the contact of left-hand rib Z941 with stop screw 63 when the seal is finished, farther revolution of the canl is stopped and it is removed from the machine after it has been lowered by swinging handle 20 to 20.

Another unsealed can of the same size is placed in the machine and treated in a similar manner till complet-ely sealed when it is removed and its place taken by another and thus till all of the cans of the same size have been sealed.

To set the machine for another size of can, spindle 34 is disconnected from gear 36 and removed together with chuck disc 32. Pins 041 are removed disconnecting cross blocks `43, @43. Head bar 41 is withdrawn downward and bolts 53 are removed releasing rolls 55 and 57 together with their housings. These housings are reset in accordance with the diameter of the cans to be sealed. Say this requires that ribs 50v be engaged in notches v 48 to accommodate cans of the largest diameter for which the illustrated machine was built. Bolts 53 arer used to clamp the housings and rolls in the new location. I-Iead bar 41 is restored to its' operative position and blocks 43, lL43 secured in Spindle 34 is set in place and gear 36 fastened thereto. Chuck disc 32 is removed from flange 33by removing its screw fastenings and a disc large enough for the cans next to be sealed screwed fast in its place. If the illustrated position of base disc 31 is too high for the length of cans next to be sealed, the base column is lifted oli of stud 13 and washer 23 removed to be replaced by a thinner one or the desired adjustment is made by resetting collar 25. l/Vhen the proper height of this column is attained a base disc suited to the new sizeof cans is put on tcp thereof in place of base disc 31.

The machine is now in proper adjustment for a trial seal. y stalled between the base and chuck discs and clamped there by elevator block 15. A seal of the first can is made in the same manner as described above and then examined. If the thickness of the metal in body and top The new size of can is in-A last sealed the new seal may beperfect. But

a slight variation in this thickness will require a slight adjustmentfof the stop screws 62 and 63 which having been made the sealing of the larger cans may proceed.

In the same manner roll housings 49 may be engaged with any pair of said notches in the bottom of the head bar. If by mischance said housings are not engaged in a pair of said notches, t-he wrong relative location thereof would make the machine inoperative. The illustrated number and location of said notches provide for sealing cans ofive different standard diameters which are, all together, of four different lengths, all of which differences in length may be accommodated by possible adjustments of the base column. y

Provision can be made in a similar and larger machine for sealing a larger number of standard cans without the size of the machine becoming too large for domestic use. Vhen the operative is left handed handle 59 is set on the opposite side of the machine using the other notch 61 forengagement with y the head flange.

It may be noted that thedesired'adjustments are such as mayxbe made by those ofv moderate skill. This can hardly be said of the usual machines of this character which have adjustments depending on the setting of eccentric collars. Y y

Inoperating this machine the contacting roll is pushed back against the kpressure of. the operatives hand once for each turn ot the can when the increasedthickness ofmetaly at the lap of the body side seam passes beneath the roll. This'back thrust is all absorbed by the operatives hand; and g arm.

without subjecting the machine to additional Y strain.

In other hand machines thisinequality in thickness of the work is usually provided for by a resilient m-ember on -which the strain4 is excessive not infrequently resulting in de'- l ciprocation on said top frame bar, a vertical spindle mounted forl revolution in central adapted to engage a can top fastened to the lower end of said spindle concentric therewith and revoluble thereby, ay grooved rstsealing roll mounted for revolution on a vertical sha-ft fastened to said head bar adjacent said chuck disc having said groovethere'of in the plane of said chuck disc,I a lgrooved i bearings on said top frame bar, a chuck disc y second-sealing roll mounted for revolution on a vertical shaft fastened to said head bar adjacent said chuck dise opposite said first-sealing roll having the plane of said groove thereof in the plane of said chuck disc, a vertical stud on the bottom frame bar projected upward in the axis of the vertical s1 indle, elevator means mounted on the stud to bear on the bottom frame bar, a nut around the stud supported on the elevatorI means, an externally threaded sleeve engaged thread- Wise in the nut mounted on the stud, a can base disc adapted to mount a can thereon having a hub engaged with the upper end of the sleeve mounted thereon for revolution in the axis of the vertical spindle, means to operate said elevator means beneath the nut to raise, retain and lower the can base disc, and means to revolve the spindle and reciprocate the head bar.

2. A can-top sealer consisting of a frame attachable to a. bench having a bottom frame bar a top frame bar and two side frame uprights rigidly connecting said top and bottom frame bars, a head bar having transverse grooves at standard distances apart in its bottom surface mounted for reeiprocation from below on said top frame bar, a vertical spindle mounted for' revolution in central bearings on said top frame bar, a chuck disc adapted to engage a can top fastened to the lower end of said spindle for revolution therewith, two roll housings fastenable to said head bar at variable locations on each side of said spindle each having a rib on the topy thereof engageable in any one of said head bar grooves, shafts fastened in said roll housings parallel with said spindle when in operative position, a crimping roll mounted for revolution in each of said housings each having an annular groove therein operatively in the plane of said chuck disc, a canbase disc adapted to mount a can thereon mounted for revolution on said bottom frame bar with its axis of revolution coinciding With the a-Xis of said spindle, means to elevate said base disc to clamp a can mounted thereon between the same and said chucl; disc, means to vary the clamping distance beween said chuck and base discs, means to revolve said spindle, means to reciprocate said head bar and retain each of said rolls in turn with crimping pressure against the rolled edge of a can top engaged on said chuck disc, and means to depress said base disc.

3. In a can-top sealer in combination, a spindle, bearings to mount said spindle vertically for revolution, a chuck disc to engage a can top fastened on the lower end of said spindle for revolution therewith, a frame adapted t fasten to a bench rigidly fastened to said spindle bearings, a stud fastenerL to said frame beneath said spindle with its axis coinciding with the axis of said spindle, an

extendible column mounted on said stud revoluble and reciprocable thereon, a can-base disc to mount a can mounted for revolution on the upper end of said column concentric with said stud, an elevator bar bearing on frame having a longitudinal slot therethrough engaging said stud beneath the lower end of aid column said bar consisting of a thicker and a thinner end having relatively stepped top surfaces with an intervening central body having an inclined plane top surface connecting said stepped surfaces adapted to be moved substantially longitudinally in one direction beneath said column to elevate the same from a position of bearing en said thinner end of said bar over said incline to a position of bearing on the thicker end thereof and to be moved in the opposite direction to depress said column from bearing on said thicker bar end to bearing on the thinne end thereof, means to reciprocate said elevator bar, two sealing rolls mounted for revolution on opposite sides of said chuck d c having annular grooves therein disposed the plane of said chuck disc, means to mount said roils for revolution, means to sepeljj,7 move each of said rolls to proximity he periphery of said Chuck disc, and means to revolve said spindle.

CHARLES M. YOUNG. 

